The selling of a part stake of the project will not result in the issuing of new shares. It will look simular to this:
http://www.pr-inside.com/general-moly-receives-second-50-million-r681358.htm
They will take 20% or something of the project at its NPV of 900M or so, so that will be about 160M, and then the rest will hopefully be raised with debt.